In which of the following, gametes are released in the surrounding medium

A.Fishes

B.Amphibians

C.Earthworm

D.Both A and B

__________ is formed just after fertilization.

A.Morula

B.Blastula

C.Zygote

D.Foetus

In which of the following mammal Oestrus cycle is absent:

A.Cow

B.Horse

C.Monkey

D.Rabbit

Which are the various stages of sexual reproduction?

A.Growth, Development, Differentiation

B.Pre fertilization, Fertilization, Post fertilization

C.Fertilization, Post Fertilization, Pre Fertilization

D.Gametogenesis, Gamete transfer, Gamete Fertilization

What is common between vegetative reproduction and apomixis?

A.Both are applicable to only dicot plants

B.Both bypass flowering phase

C. Both occur round the year

D.Both produces progeny identical to parent

Which structure provides surface for the settlement of pollen grains in angiosperm plants?

A.Anther

B.Style

C.Stigma

D.Pollen tube

Find the monoecious plant

A.Coconut

B.Cucurbits

C.Both A and B

D.Papaya

Which type of spores are produce by pteridophytes and gymnosperms?

A.Spore myoblast

B.Somatic spores

C.Heterospores

D.Homospores

If the gametes are similar in their appearance they are called as

A.Anisogametes

B.Isogametes

C.Homogametes

D.Both B and C

Grafting is impossible in monocot-because

A. vascular cambium is absent 

B. Meristematic tissue is absent

C. Collateralopen vascular bundle

D. Radial vascular bundle